People Sung-hyun Byun peoplepill id: sung-hyun-byunSB 5 views today 5 views this weekSung-hyun ByunBiographyListsAlso ViewedThe basicsQuick FactsisScreenwriter ActorGenderMaleListsSung-hyun Byun is in following listsBy work and/or countryNotable ScreenwritersGender:MaleNotable ActorsGender:Male comments so far.CommentsSung-hyun Byun